[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.certnakoze.cz\/znama-i-neznama-vrtule-tresnova\/#Article","mainEntityOfPage":"https:\/\/www.certnakoze.cz\/znama-i-neznama-vrtule-tresnova\/","headline":"Zn\u00e1m\u00e1 i nezn\u00e1m\u00e1 vrtule t\u0159e\u0161\u0148ov\u00e1","name":"Zn\u00e1m\u00e1 i nezn\u00e1m\u00e1 vrtule t\u0159e\u0161\u0148ov\u00e1","description":"Kdo chce m\u00edt t\u0159e\u0161n\u011b a vi\u0161n\u011b bez \u010derv\u016f, mus\u00ed je chr\u00e1nit p\u0159ed vrtul\u00ed! Jinak sklize\u0148 t\u011bchto lahodn\u00fdch rud\u00fdch plod\u016f nebude pro stoln\u00ed \u00fa\u010dely p\u0159ijateln\u00e1. A […]","datePublished":"2017-02-26","dateModified":"2023-04-28","author":{"@type":"Person","@id":"https:\/\/www.certnakoze.cz\/author\/devene\/#Person","name":"devene","url":"https:\/\/www.certnakoze.cz\/author\/devene\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/40308b9402d145b1dc164f447b6506e9dadca8c8362c3ffb52df95e789c0fd10?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/40308b9402d145b1dc164f447b6506e9dadca8c8362c3ffb52df95e789c0fd10?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"certnakoze.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"url":"https:\/\/www.certnakoze.cz\/znama-i-neznama-vrtule-tresnova\/","about":["Kr\u00e1sa"],"wordCount":432,"articleBody":"Kdo chce m\u00edt t\u0159e\u0161n\u011b a vi\u0161n\u011b bez \u010derv\u016f, mus\u00ed je chr\u00e1nit p\u0159ed vrtul\u00ed! Jinak sklize\u0148 t\u011bchto lahodn\u00fdch rud\u00fdch plod\u016f nebude pro stoln\u00ed \u00fa\u010dely p\u0159ijateln\u00e1. A o tom, jakou budete m\u00edt letos \u00farodu, rozhodujete nejen vy, ale p\u0159edev\u0161\u00edm vrtule, kter\u00e1 plody napad\u00e1 a zp\u016fsobuje tak jejich \u010dervivost.Vrtule vyl\u00e9t\u00e1 v\u00a0kv\u011btnu, kdy ji ze zimn\u00edho sp\u00e1nku probud\u00ed slunce a teplo.A hned se pust\u00ed do sv\u00e9 jedin\u00e9 pr\u00e1ce \u2013 za\u010dne pod slupku nedozr\u00e1l\u00fdch plod\u016f kl\u00e1st sv\u00e1 vaj\u00ed\u010dka. Tato drobn\u00e1, pestrobarevn\u00e1 mu\u0161ka, je velk\u00e1 sotva 5 milimetr\u016f. \u010cern\u00e9 t\u011bl\u00ed\u010dko se \u017elut\u00fdm \u0161t\u00edtkem na hrudi, s \u010derveno\u017elut\u00fdmi tykadly, \u017elutohn\u011bdou hlavou, zelen\u00fdma o\u010dima, kter\u00e9 jsou nav\u00edc \u017elut\u011b obrouben\u00e9, a s dob\u0159e viditelnou kresbou na pr\u016fhledn\u00fdch k\u0159\u00eddlech, vypad\u00e1 vcelku nevinn\u011b. Na zade\u010dku m\u00e1 v\u0161ak vysunut\u00e9 klad\u00e9lko, kter\u00e9 mu\u0161ce umo\u017e\u0148uje prorazit tvrdou slupku nezral\u00fdch plod\u016f a nakl\u00e1st vaj\u00ed\u010dko do du\u017einy.Kdy\u017e je kr\u00e1sn\u00e9 po\u010das\u00ed, je snadn\u00e9 vid\u011bt dosp\u011bl\u00e9 samice tohoto nev\u00edtan\u00e9ho hmyzu, jak se p\u00e1\u0159\u00ed nebo kladou vaj\u00ed\u010dka p\u0159\u00edmo na plodech. Pokud je v\u0161ak teplota ni\u017e\u0161\u00ed ne\u017e\u00a0 20\u00b0C, tak vaj\u00ed\u010dka nikdy nekladou, proto\u017ee jim je zima. Do ka\u017ed\u00e9ho plodu, a\u0165 u\u017e \u010dervenaj\u00edc\u00edho, nebo st\u00e1le je\u0161t\u011b zelen\u00e9ho, nakladou v\u017edy jen jedno vaj\u00ed\u010dko.Za sezonu stihne jedna vrtule nakl\u00e1st a\u017e 100 vaj\u00ed\u010dek, \u010d\u00edm\u017e \u010dervivost\u00ed znehodnot\u00ed skoro celou \u00farodu. Larvy se pak l\u00edhnou do 14 dn\u016f od nakladen\u00ed. Jsou b\u00edl\u00e9, leskl\u00e9 a dor\u016fstaj\u00ed d\u00e9lky 6 milimetr\u016f. Larva v\u00a0plodu \u017eije t\u0159i t\u00fddny, kdy si po celou dobu pochutn\u00e1v\u00e1 na du\u017ein\u011b sladk\u00e9ho plodu. Du\u017eina plodu jejich p\u016fsoben\u00edm postupn\u011b hn\u011bdne, m\u011bkne a zahn\u00edv\u00e1. Plody pak \u010dasto ze stromu opad\u00e1vaj\u00ed. Pot\u00e9 se \u010dervi p\u0159esunou do p\u016fdy, kde se za\u010dnou kuklit a n\u00e1sledn\u011b p\u0159ezimovat.Napaden\u00e9 plody pozn\u00e1te velmi snadno, maj\u00ed toti\u017e malou hn\u011bdou prohlubinku a zm\u011bklou skvrnu, nej\u010dast\u011bji v\u00a0bl\u00edzkosti stopky, kudy bylo do plodu vlo\u017eeno vaj\u00ed\u010dko. Napaden\u00e9 b\u00fdvaj\u00ed nej\u010dast\u011bji pozdn\u011b zraj\u00edc\u00ed plody. Vrtule nav\u00edc preferuj\u00ed slad\u0161\u00ed odr\u016fdy t\u0159e\u0161n\u00ed a vi\u0161n\u00ed.Pokud chcete m\u00edt \u00farodu t\u0159e\u0161n\u00ed zdravou, tedy bez napaden\u00ed larvami vrtule t\u0159e\u0161\u0148ov\u00e9, je pot\u0159eba je spr\u00e1vn\u011b p\u0159ed \u0161k\u016fdci ochr\u00e1nit.                                                                                                                                                                                                                                                                                                                                                                                        4.3\/5 - (11 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Zn\u00e1m\u00e1 i nezn\u00e1m\u00e1 vrtule t\u0159e\u0161\u0148ov\u00e1","item":"https:\/\/www.certnakoze.cz\/znama-i-neznama-vrtule-tresnova\/#breadcrumbitem"}]}]